Quizzes &Tests; Take a Test Oluwaseyi Durosiemi-Etti MGQ301 -Fall 2017 Oluwaseyl
ID: 3317133 • Letter: Q
Question
Quizzes &Tests; Take a Test Oluwaseyi Durosiemi-Etti MGQ301 -Fall 2017 Oluwaseyl Du Quiz: QUIZ 4-Chapters 6,7&8 Tim This Question: 1 pt I3 of 15 (0 complete) Classified ads in a newspaper offered 21 used cars of the same make and model for sale. A regression analysis was performed with the age of the car (in years) as the explan -1439-1011 whats soe eofthe revess nine based on n asthe response vanable. A95% confidence interval for the slope of the population regression ine is Choose the correct answer below. OAL 428 B. Between-1439 and-1011 with 95% confidence O C. Unknown, more information is needed to calculate the slope. OD. -1225 Click to select your answer
Explanation / Answer
Ans:
1)slope=(-1439-1011)/2=-1225
Option D is correct.
2)df(paint)=4-1=3
df(error)=24-4=20
SS(paint)=1645.3*0.5271=867.238
SS(error)=SST-SSE=1645.3-867.238=778.062
MS(paint)=867.238/3=289.079
MS(error)=MSE=778.062/20=38.903
MSE=sp2 or pooledvariance=38.9
Option D is correct(38.9)
df SS MS F p-value Paint 3 867.238 289.079 7.43 0.002 error 20 778.062 38.903 Total 23 1645.3Related Questions
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